Figure 4
Longitudinal DBS CRP measures in home based arthritis patients. Tables summarising area under the curve (AUC) measures and change (ΔCRPt6–t0; 6 week [CRP]—baseline [CRP]) in DBS CRP concentration over the 6 week monitoring period for a subcohort of: (A) 11 participants who did not report a ‘flare’ and (B) 18 participants who did report a flare (1 individual did not provide their flare status). AUC was calculated by two different methods: in column (i) by using all weekly data points to construct an accurate continuous data AUC value, or in column (ii) by using baseline and 6 week data points to estimate a minimal data AUC value. Sparklines indicate the DBS CRP concentration of each participant over the 6 week period, such that (iii) CRP concentrations from weekly DBS are indicated by individual data points plotted on the same scale (with red data point indicating high point), or (iv) with only DBS CRP concentrations above 10 mg/L indicated. The week in which patients reported flare is listed and indicated by a red arrow in column (iii) sparklines. A threshold of 35 mg week/L was used assign positive ‘flare’ status, indicated in bold in columns (i) and (ii). Only participants with sparkline data visible in column (iv) were assigned positive flare status.
